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Finding the Fourth Proportional to 355,100.61, 490,035.93 and 193,955.77

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Solution

The fourth proportional to 355,100.61, 490,035.93 and 193,955.77 is: 267,657.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,100.61 : 490,035.93 = 193,955.77 : x
  2. Step 2: Convert to fraction form
    355,100.61/490,035.93 = 193,955.77/x
  3. Step 3: Cross multiply
    355,100.61x = 490,035.93 × 193,955.77
  4. Step 4: Simplify right side
    355,100.61x = 95,045,293,259.57
  5. Step 5: Solve for x
    x = 95,045,293,259.57/355,100.61
  6. Step 6: Final answer
    x = 267,657.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.